IEEE 11073 and NIST RTMMS Terminology Process IEEE 11073 GC at HL7, New Orleans Tuesday, January 30, 2018 Paul Schluter Center for Medical Interoperability

Topics Term assignment process: REFID[disc]PartCode 3-tuple Used first time: IHE PCD WCM, MEM-LS, ~ PIV + IPEC Additional term disclosure requirements Requires working group review and approval Summary and deployment

New Term REFID and Code Assignments Background for this discussion, motivated by the desirability of assigning numeric codes at the earliest possible time. Use the NIST RTMMS as the authoritative numeric code validator (and/or generator) for new terms to guarantee non-overlap between multiple organizations, e.g. IEEE 11073 PoCD, IEEE 11073 PHD, IHE PCD Rosetta, PCHA/Continua, MDPnP, OR.NET and others. If the assigned Reference ID, Disc, Part::Code is discarded during balloting, it is retired as a “zombie term” and cannot be re-used. Terms that are assigned codes must have complete definitions, UoMs, enum values and other information when they are submitted as an Excel worksheet, formatted exactly as it would appear in the published standard. Is this a good idea? Yes, if we can keep the number of “zombie terms” to a small number (e.g. < 1 to 3% of new terms defined). No, we could end up with a ‘free-for-all’ if this is uncontrolled without any degree of editorial review and curation.

Code and Term Assignment Process  Proposed 0^MDCX terms that have not been approved by a recognized working group, let alone by the larger IEEE 11073 community.  Provisional terms that have been approved by a recognized working group (e.g. IEEE 11073 PoCD, PHD, IHE PCD Rosetta or Profile/Supplement WG, PCHA/Continua, MDPnP, OR.NET and others) may have numeric codes assigned to them prior to IEEE balloting. The status of each term (proposed, provisional, published) will be maintained on the NIST RTMMS.  Published terms are those that have been balloted, approved and published as an IEEE 11073 standard. Note: If a provisional term is rejected during IEEE balloting, the { Reference ID, Disc, Part::Code } 3-tuple will be retired as a “zombie term” and the Part::Code shall not deployed in messages nor recycled for use with another term in the future (enforced by NIST test tools). Proposed and provisional terms are subject to change and are not final until published in an IEEE 11073 standard. CF_CODE10^REFID RTMMS Status Meaning 0^MDCX_term  Proposed Proposed term nnnnn^MDC_term  Provisional Assigned numeric code (could become zombie)  Published IEEE 11073 Balloted, Approved and Published

Term Provenance and WGs The provenance of ‘Published’ and ‘Provisional’ terms will be indicated in the RTMMS using the IEEE filename, an IHE PCD Content Profile/Supplement/Module or other designator. Identifier Working Group or IHE PCD Content Profile/Supplement/Module 10101a-2015 An approved and published IEEE 11073 PoCD or PHD Standard 10101b-D1 A draft IEEE 11073 standard (first ballot draft) 20601-2014-Cor1 A corrigenda (use IEEE-SA filename conventions) PCD-PIV-IPEC An IHE PCD Profile (PIV and IPEC) PCD-MEM-LS An IHE PCD Supplement (MEM Location Services) PCD-WCM An IHE PCD Content Module (e.g. Waveform Content Module)

Provisional Term Information Column Name Description REFID Proposed IEEE 11073 Reference ID Disc Proposed IEEE 11073 Discriminator Set Identifier(s) 1, 2 PartCode Proposed IEEE 11073 Partition and Code, unless assigned by RTMMS 3 Proposed IEEE 11073 Description UOM_MDC IEEE 11073 Units of Measure UOM_UCUM UCUM Units of Measure Enum_Values Enumerated Value(s) External_Sites Measurement Site(s) Notes: MVC, MMM, SDM, RCE, RCN, LAT, UoM, UoM1, 1 discriminator sets defined in ISO/IEEE 11073-10101a-2015. LEAD disriminator set is defined in ISO/IEEE 11073-10102-2012 aECG. Part::Code can be proposed (and verified by RTMMS) or can be assigned by RTMMS. { REFID, Disc, PartCode } is reserved forever, unless deprecated and prohibited from future use as a ‘zombie’. UOM_MDC and UOM_UCUM, Enum_Values and External_Sites are conditional.

Summary and Deployment IEEE 11073 terms can have the following deployment status: Status Meaning Example (OBX-3) Private Private, upper 4K of partition 131072^MDCGE_EEG_COHERENCE_INDEX^MDC Proposed Proposed 0^MDCX_ term 0^MDCX_ECG_QT_DISPERSION^MDC Provisional Assigned numeric code, could become zombie 68321^MDC_ATTR_SAMPLE_COUNT^MDC Published IEEE 11073 Balloted, Approved and Published 147842^MDC_ECG_HEART_RATE^MDC Support for ‘provisional’ terms was recently implemented on the NIST RTMMS and was used to assign new MDC_ATTR attributes and MDC_EVT events for IHE PCD WCM and MEM-LS. IHE PCD PIV and IPEC terms can also be viewed as ‘provisional’ and the same process can be used for IEEE 11073 Personal Health Device (PHD) terms as well.

IEEE 11073 and NIST RTMMS Terminology Process BACKGROUND SLIDES

Additional Required NIST RTMMS Capabilities Clearly indicate { proposed, provisional, published, zombie } status for all terms. Maintain list of { published ∪ provisional ∪ zombie } terms, from which new provisional REFIDs and Part::Codes shall not be drawn. Essential First Steps ... The IEEE 11073 PHD WG should copy or move their terminology {REFID,disc,code} 3-tuples and definitions to NIST RTTMS so that it can function as the single authoritative numeric code generator. The entire set of all {REFID,disc,code} 3-tuples should be verified against other vendor databases to ensure correctness.